基于FMECA与模糊FTA的余热锅炉安全分析

发布时间：2018-04-13 01:07

本文选题：余热锅炉 + FMECA　；参考：《中国安全生产科学技术》2015年08期

【摘要】：为了保证余热锅炉安全运行,预防爆炸事故发生,利用FMECA方法和模糊FTA方法,研究余热锅炉事故致因。通过对余热锅炉潜在危险因素的分析辨别,探讨设备故障类型、原因及相应处理方法,引入模糊FTA对余热锅炉爆炸事故定性和定量分析,进而构建了基于FMECA与模糊FTA的余热锅炉安全分析框架,并计算得出事故发生的模糊概率以及对基本事件的敏感性分析。研究表明,余热锅炉系统的可靠度大约为96.92%,未按规定排污,报警器失灵,安全阀压力连接管堵塞及除氧器不合格事件对顶事件发生概率的影响最大,从而为该系统的安全决策提供支持。
[Abstract]:In order to ensure the safe operation of the waste heat boiler and prevent the explosion accident, the cause of the accident of the waste heat boiler is studied by using the FMECA method and the fuzzy FTA method.Through the analysis and discrimination of potential hazard factors of waste heat boiler, the types of equipment faults, the causes and the corresponding treatment methods are discussed, and the qualitative and quantitative analysis of explosion accidents of waste heat boiler by fuzzy FTA is introduced.Furthermore, the safety analysis framework of waste heat boiler based on FMECA and fuzzy FTA is constructed, and the fuzzy probability of accident occurrence and sensitivity analysis to basic events are calculated.The results show that the reliability of the waste heat boiler system is about 96.92, the failure of discharge, the failure of the alarm, the blockage of the safety valve pressure connection and the unqualified events of the deaerator have the greatest influence on the probability of the top event.So it can support the security decision of the system.
【作者单位】：昆明理工大学国土资源工程学院;昆明锅炉有限责任公司;
【基金】：昆明理工大学自然科学研究基金项目(KKSY201321083)
【分类号】：X933.2

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